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Adults over 50 often produce less stomach acid needed for B12 absorption from food
Possible side effects include mild nausea, headaches, and injection site reactions
Verified Answer I am having difficulty with the 1 mL vitamin B-12 bottles and thought that a larger bottle might be a better option
It also means that the dose-response curve is steeper, which reinforces why accurate calculation and gradual escalation are non-negotiable
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